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ECG Necktie

project goals
to create a circuit-connected necktie
containing a light up heart which can
blink based on a wearer’s input. The
input can either be based on detecting
a subject’s heart-rate or can be based
on bending a flex sensor.

case LOW: //if switch in low position
digitalWrite(rimLight, LOW); //turn off all lights
digitalWrite(beatLight, LOW);
//would like following line to map the signal from the mean to the max of the signal
int heartMod = map(analogRead(heartSig), 650,700, 0, 1024); //read signal and map
Serial.println(heartMod); //output for setting threshholds above

Weaving Challenge

Pocket Sized Contest

Build a Tool Contest

6 Discussions

Just a question: Is there a way to drive this project directly with 5V or 3.3V? So that you only need one voltage? Would be a lot easier to provide one voltage via one step up / down generator while "on the run" :).

Hey, thanks so much for sharing this, I'm a complete n00b to Arduino and electronics in general, I think I have most of the circuit figured out but I'm still unsure of what "U1A" and "U3A" stand for, could you please clarify that? Also, I could only find "AD623ANZ" (http://www.newark.com/analog-devices/ad623anz/ic-instrument-amp-800khz-110db/dp/59K4402?Ntt=ad623an) and "LMC6484AIN/NOPB" (http://www.newark.com/national-semiconductor/lmc6484ain-nopb/ic-op-amp-1-5mhz-1-3v-%C2%B5s-dip-14/dp/41K2665), would those be ok? Thanks again!